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givi [52]
3 years ago
14

How many total atoms are represented in the formula CaCO3?

Biology
2 answers:
bearhunter [10]3 years ago
7 0
The correct answer is A (5)

Explanation : this is because there is one atom of calcium, one atom of carbon, and three atoms of oxygen.
Vladimir [108]3 years ago
6 0

Answer:

a

Explanation:

bb

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What are the different steps to cellular respiration?
Lina20 [59]

Answer:

Steps to cellular respiration:

1) In the first step of respiration, glycolysis occurs in which glucose molecule is converted into pyruvate molecule.

2) Krebs cycle is also called citric acidity cycle. In this cycle, hydrogen and electron are produced from the oxidation of pyruvate molecule and provides to electron transport chain.

3) Electrons carried by NADH + H and FADH2 are converted into oxygen through a series of electron carriers, and production of ATP occurs.

7 0
3 years ago
Complete the phylogenetic tree by matching each characteristic that arose during the evolution of animals to its correct positio
spayn [35]

Answer:

The correct characteristics are -<em><u> tissue, coelom, segmentation, endoskeleton, and backbone</u></em> from top to bottom boxes.

Explanation:

This phylogenetic tree showing the evolution and relatedness of the different organisms on their shared characteristics. In the given phylogenetic tree there are some characters are missing and we can predict or state them on the basis of evolution and studying the characteristics.

After the Porifera phylum tissue-level organization is found in the organism hence Tissue would be placed in the first box.

The coelom is found organisms above the Nematoda level, which further include a character segmentation in Annelida and Arthropoda. Another lineage from arising with the coelom organism that included endoskelton and backbone.

Thus, The correct characteristics are - tissue, coelom, segmentation, endoskeleton, and backbone from top to bottom boxes.

3 0
3 years ago
Help me please i need it​
Harlamova29_29 [7]

Answer:

B) lighting a match

Explanation:

a chemical change is a chemical reaction involving the rearrangement of atoms. While a physical change can often be reversed, a chemically change typically cannot.

Always remember, if something is being lit on fire then it is a chemical change, since fire breaks the bonds in between the atoms.

Freezing water is a physical change because it can be reversed and does not alter the substance, which is water. a change in state i always a physical change

tearing up a piece of paper is a physical change since nothing on a molecular level has changed. its still paper.

Dissolving sugar in water is a <em>homogenous mixture</em>, meaning that it looks uniform without, however it is still only sugar and water, so it is a physical change.

4 0
3 years ago
Who is the first discovered plants were made of cells?​
Alex17521 [72]

Answer: PLEASE MARK ME AS BRAINLIST

Explanation:

The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.

the German botanist Schleiden proposed that all plants are made up of plant cells. Thank you.

6 0
3 years ago
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The salinity of ocean water
Hatshy [7]
The salinity of ocean water is approximately 3.5%... or 35 parts per thousand! Hope this helps
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3 years ago
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